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Issue 42, 2015
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Graphene based anticorrosive coatings for Cr(VI) replacement

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Corrosion has been a perennial issue of concern for the steel industry. Chromate conversion coatings are well known pre-treatment coatings for steel but due to environmental concerns and legislations, their use has been restricted. The industrial community, pegged by these legislations, has been long demanding an economically viable and eco-friendly pre-treatment coating alternative, without having to compromise on the durability and corrosion performance of the overall coating system. The present study focuses on evaluation of graphene as an anticorrosive alternative to Cr(VI) based coatings. Graphene, produced by a high shear liquid exfoliation route, upon functionalisation, provides a conductive and nearly impermeable barrier coating. On electrochemical and coating performance evaluation of this coating system, a dramatic improvement in corrosion resistance is observed. The study confirms the environment friendly corrosion protection of steel using functionalised graphene coating.

Graphical abstract: Graphene based anticorrosive coatings for Cr(vi) replacement

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Publication details

The article was received on 13 Jul 2015, accepted on 25 Sep 2015 and first published on 28 Sep 2015

Article type: Paper
DOI: 10.1039/C5NR04702A
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Nanoscale, 2015,7, 17879-17888

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    Graphene based anticorrosive coatings for Cr(VI) replacement

    Karanveer. S. Aneja, S. Bohm, A. S. Khanna and H. L. M. Bohm, Nanoscale, 2015, 7, 17879
    DOI: 10.1039/C5NR04702A

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